Wrench.



No. 784,151. PATENTEI) MAR. 7, 1905. W. E. GILGHRIST.

WRENCH.

APPLICATION FILED MAY 20. 1904.

STATES Patented March '7, 1905.

VllLLIAM E. GILCHRIST, OF ROCKFORD, ILLINOIS, ASSIG-NOR OF ONE- HALF TOEDVVTN M. ST. JOHN, OF ROCKFORD, ILLINOIS.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 784L151, dated March 7,1905.

Application filed May 20, 1904. Serial No. 208,796.

I!) (bid mil/0712, it may concern:

Be it known that I, WILLIAM E. GILoHnIs'r, a

. citizen of the United States, residing at Rockford, in the county ofWinnebago and State of Illinois, have invented certain new and usefulimprovements in Wrenches, of which the following is a specification.

The object of this invention is to construct a wrench composed of twojaws pivotally connected and apivoted dog carried by a swing ing yoke.

The further object of this invention is to provide a shield secured toone of the jaws and covering the space between the jaws.

The further object of this invention is to form a recess in the meetingfaces of the jaws and locating a spring in said recess having its endsresting against the meeting faces of the jaws, thereby serving to holdthem open.

:ln the accompanying drawings, Figure 1 is a face representation of myimproved wrench in which the jaws are closed. Fig. 2 is a similar viewin which the jaws are practically open. Fig. 3 is a top edge view.

The lower jaw 1 is made of plate material and has a shield connectedthereto. This shield 2 is formed of a single piece of material andreceives the lower edge and sides of the lower jaw. The upper jaw has apivotal connection with the shield 2 at the point l and is received andguided by the shield. The upper edge of the upper jaw is provided with aseries of sawteeth 5, and the lower edge of the free end of the upperjaw is provided with a series ofsaw-teeth 6. To the lower jaw arepivoted two links 7 and 8, one located each side of the jaw andconnected thereto by the rivet 9. These links receive the upper jawbetween them and their free ends support a dog 10 in a pivotal manner.This dog has a series of sawteeth 11 in its lower face. The meetingfaces of the jaws are formed with semicircular recesses 12 and cut-awayportions 13. A spring has its central coil 14: located in the recessesand its free ends 15 located in the cut away portions. With the parts inthe positions shown in the drawings the shield will serve to hold thejaws in proper alinement, also to protect the hand of the user frominjury by being pinched between the jaws, and will also hold the springfrom displacement.

By the employment of the pivoted dog provided with the series of teethit will readily adapt itself to the teeth formed in the upper face ofthe upper jaw in whatever position the dog may be. The pivoted dog withits several teeth will insure a good connection with the upper jaw.

By this arrangement the hand of the user is protected against injury andthe jaws quickly adjusted and a strong construction in compact formproduced.

It is evident that the shield forms the handle or that portion graspedby the hand when in use, which being in close proximity to the dog itcan be adjusted by the same hand.

1 claim as my invention 1. A wrench comprising two jaws of substantiallya uniform thickness throughout, a separate shield permanently connectedto one of the jaws and embracing both faces of the other jaw.

:2. A wrench comprising two jaws of substantially a uniform thicknessthroughout, a separate shield permanently connected to one of the jawsand em bracing the edge of the jaw to which it is connected and bothsides of both jaws.

3. A wrench comprising two jaws of substantially a uniform thicknessthroughout, a separate shield permanently connected to one of the jawsand adapted to receive both jaws and having a pivotal con nection withthe other "WILLIAM E. (:iilLOlllillS'l. Witnesses:

A. O. BnnnL, 1G. Pinnin

